Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.

A195975

Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.

Terms

    a(0) =9a(1) =43a(2) =67a(3) =133a(4) =244a(5) =519a(6) =1072a(7) =2225a(8) =4456a(9) =9098a(10) =19066a(11) =39689a(12) =82372a(13) =171498a(14) =358146a(15) =748911a(16) =1567225a(17) =3279792a(18) =6866722a(19) =14390098a(20) =30170057a(21) =63261378a(22) =132676528a(23) =278340227a(24) =584041659a(25) =1225661652a(26) =2572438981a(27) =5399619168a(28) =11334969352

External references